Function SendQueryAndCapture

engine/dlib/src/test/test_mdns.cpp:1074–1092

    }

    static bool SendQueryAndCapture(dmMDNS::HMDNS mdns, dmSocket::Socket socket, const char* qname, uint16_t qtype, const std::vector<std::string>& names, RawDnsPacket* packet, uint32_t timeout_ms)
    {
        std::vector<uint8_t> query;
        BuildQueryPacket(qname, qtype, &query);

        // mDNS traffic is asynchronous and prior announcements may still be queued
        // on the capture socket. Drain them so this helper only observes replies
        // caused by the query we are about to send.
        DrainSocket(socket, 10);

        int sent = 0;
        if (dmSocket::SendTo(socket, &query[0], (int) query.size(), &sent, dmSocket::AddressFromIPString(MDNS_MULTICAST_IPV4), MDNS_PORT) != dmSocket::RESULT_OK
            || sent != (int) query.size())
        {
            return false;
        }

        return WaitForMatchingResponse(mdns, socket, names, packet, timeout_ms);
    }

    static bool QueryProducesNoMatchingResponse(dmMDNS::HMDNS mdns, dmSocket::Socket socket, const char* qname, uint16_t qtype, const std::vector<std::string>& names, uint32_t timeout_ms)
    {